Exploring Extracellular Vesicles as Tiny Messengers for Pain Relief

Published on March 3, 2023

Consider extracellular vesicles (EVs) as tiny messengers in the world of pain relief, specifically neuropathic pain. Imagine these EVs as little packages capable of transporting important cargo to cells in need. They contain proteins and various forms of RNA, including microRNAs (miRNA) and long noncoding RNAs (lncRNA). Scientists have been studying how EVs can potentially alleviate neuropathic pain by regulating glial cell activation and neuroinflammation. Neuropathic pain arises from uncontrolled glial cell activation triggered by noxious stimulation. The precise mechanisms are still a mystery, but it is clear that noncoding RNAs play a significant role in its pathogenesis. By harnessing EVs to deliver these noncoding RNAs, researchers are exploring new avenues for pain treatment. This article introduces the origins and clinical application of EVs, delves into the development of neuropathic pain, and highlights the therapeutic potential of EVs in pain management. I encourage you to explore the groundbreaking research on this exciting topic!

Extracellular vesicles (EVs) including exosomes are vesicular vesicles with phospholipid bilayer implicated in many cellular interactions and have the ability to transfer multiple types of cargo to cells. It has been found that EVs can package various molecules including proteins and nucleic acids (DNA, mRNA, and noncoding RNA). The discovery of EVs as carriers of proteins and various forms of RNA, such as microRNAs (miRNA) and long noncoding RNAs (lncRNA), has raised great interest in the field of drug delivery. Despite the underlying mechanisms of neuropathic pain being unclear, it has been shown that uncontrolled glial cell activation and the neuroinflammation response to noxious stimulation are important in the emergence and maintenance of neuropathic pain. Many studies have demonstrated a role for noncoding RNAs in the pathogenesis of neuropathic pain and EVs may offer possibilities as carriers of noncoding RNAs for potential in neuropathic pain treatment. In this article, the origins and clinical application of EVs and the mechanism of neuropathic pain development are briefly introduced. Furthermore, we demonstrate the therapeutic roles of EVs in neuropathic pain and that this involve vesicular regulation of glial cell activation and neuroinflammation.

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